Abstract
We describe a case of a lingual thyroglossal duct cyst diagnosed prenatally by ultrasound at 26 weeks of gestation. The follow-up ultrasound scans revealed no changes in the cyst measurement. Surgical treatment was performed without any complication 72 hours after delivery with good results.
Highlights
Thyroglossal duct anomalies are the most common malformation in the neck [1,2,3,4,5,6,7]; they can be found anywhere in the migration pathway of the thyroid gland from the floor of the mouth to its final location and consist in the persistence of embryological epithelial rests at this pathway.Lingual presentation is uncommon
We describe a case of a lingual thyroglossal duct cyst diagnosed prenatally by ultrasound at 26 weeks of gestation
When prenatal diagnosis is made, a follow-up to detect cyst growth is recommended and its final size and characteristics will determine the mode of delivery
Summary
Thyroglossal duct anomalies are the most common malformation in the neck [1,2,3,4,5,6,7]; they can be found anywhere in the migration pathway of the thyroid gland from the floor of the mouth to its final location and consist in the persistence of embryological epithelial rests at this pathway. Published papers describe this type of presentation from 2.1 to 8% [3, 4, 7] and 70% of the cases correspond to a lingual thyroid and not to a persistent thyroglossal duct [8]. It is important to make a differential diagnosis with other anomalies. When prenatal diagnosis is made, a follow-up to detect cyst growth is recommended and its final size and characteristics will determine the mode of delivery
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